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| author | Jan Beulich <jbeulich@novell.com> | 2018-04-26 08:48:56 +0200 |
|---|---|---|
| committer | Jan Beulich <jbeulich@suse.com> | 2018-04-26 08:48:56 +0200 |
| commit | 59ef5df41e8a2addac4c74bb838fe8295cc79ebf (patch) | |
| tree | 42051518164fa26aa716d64e4db439fa9cb38acc /gas | |
| parent | 6e041cf4b0b00e85bee85bee98c411f16bd15747 (diff) | |
| download | fsf-binutils-gdb-59ef5df41e8a2addac4c74bb838fe8295cc79ebf.zip fsf-binutils-gdb-59ef5df41e8a2addac4c74bb838fe8295cc79ebf.tar.gz fsf-binutils-gdb-59ef5df41e8a2addac4c74bb838fe8295cc79ebf.tar.bz2 | |
x86: CpuXSAVE is a prereq for various other features
All of AVX, LWP, MPX, and PKU require XSAVE, and hence it as well as
XRSTOR should be enabled when enabling these ISA extensions. Leverage
these implications to shorten some of the cpu_flag_init[] entries.
Diffstat (limited to 'gas')
| -rw-r--r-- | gas/ChangeLog | 7 | ||||
| -rw-r--r-- | gas/testsuite/gas/i386/xsave-intel.d | 12 | ||||
| -rw-r--r-- | gas/testsuite/gas/i386/xsave.d | 12 | ||||
| -rw-r--r-- | gas/testsuite/gas/i386/xsave.s | 25 |
4 files changed, 56 insertions, 0 deletions
diff --git a/gas/ChangeLog b/gas/ChangeLog index 18c2f65..7981f81 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,5 +1,12 @@ 2018-04-26 Jan Beulich <jbeulich@suse.com> + * testsuite/gas/i386/xsave.s: Add AVX, LWP, MPX, and PKU + dependency tests. + * testsuite/gas/i386/xsave.d, + testsuite/gas/i386/xsave-intel.d: Adjust expecations. + +2018-04-26 Jan Beulich <jbeulich@suse.com> + * config/tc-i386.c (parse_real_register): Re-write {,x,y,z}mm and mask register handling. * testsuite/gas/i386/avx512f-ymm.s, testsuite/gas/i386/avx512f-ymm.d, diff --git a/gas/testsuite/gas/i386/xsave-intel.d b/gas/testsuite/gas/i386/xsave-intel.d index fc40a67..c43e33a 100644 --- a/gas/testsuite/gas/i386/xsave-intel.d +++ b/gas/testsuite/gas/i386/xsave-intel.d @@ -16,4 +16,16 @@ Disassembly of section .text: [ ]*[a-f0-9]+: 0f ae 29 xrstor \[ecx\] [ ]*[a-f0-9]+: 0f ae 21 xsave \[ecx\] [ ]*[a-f0-9]+: 0f ae 31 xsaveopt \[ecx\] +[a-f0-9]+ <avx>: +[ ]*[a-f0-9]+: 0f ae 20 xsave \[eax\] +[ ]*[a-f0-9]+: 0f ae 28 xrstor \[eax\] +[a-f0-9]+ <lwp>: +[ ]*[a-f0-9]+: 0f ae 20 xsave \[eax\] +[ ]*[a-f0-9]+: 0f ae 28 xrstor \[eax\] +[a-f0-9]+ <mpx>: +[ ]*[a-f0-9]+: 0f ae 20 xsave \[eax\] +[ ]*[a-f0-9]+: 0f ae 28 xrstor \[eax\] +[a-f0-9]+ <pku>: +[ ]*[a-f0-9]+: 0f ae 20 xsave \[eax\] +[ ]*[a-f0-9]+: 0f ae 28 xrstor \[eax\] #pass diff --git a/gas/testsuite/gas/i386/xsave.d b/gas/testsuite/gas/i386/xsave.d index 2abb8ad..d9cf2da 100644 --- a/gas/testsuite/gas/i386/xsave.d +++ b/gas/testsuite/gas/i386/xsave.d @@ -14,4 +14,16 @@ Disassembly of section .text: [ ]*[a-f0-9]+: 0f ae 29 xrstor \(%ecx\) [ ]*[a-f0-9]+: 0f ae 21 xsave \(%ecx\) [ ]*[a-f0-9]+: 0f ae 31 xsaveopt \(%ecx\) +[a-f0-9]+ <avx>: +[ ]*[a-f0-9]+: 0f ae 20 xsave \(%eax\) +[ ]*[a-f0-9]+: 0f ae 28 xrstor \(%eax\) +[a-f0-9]+ <lwp>: +[ ]*[a-f0-9]+: 0f ae 20 xsave \(%eax\) +[ ]*[a-f0-9]+: 0f ae 28 xrstor \(%eax\) +[a-f0-9]+ <mpx>: +[ ]*[a-f0-9]+: 0f ae 20 xsave \(%eax\) +[ ]*[a-f0-9]+: 0f ae 28 xrstor \(%eax\) +[a-f0-9]+ <pku>: +[ ]*[a-f0-9]+: 0f ae 20 xsave \(%eax\) +[ ]*[a-f0-9]+: 0f ae 28 xrstor \(%eax\) #pass diff --git a/gas/testsuite/gas/i386/xsave.s b/gas/testsuite/gas/i386/xsave.s index 37c7d50..1a9848b 100644 --- a/gas/testsuite/gas/i386/xsave.s +++ b/gas/testsuite/gas/i386/xsave.s @@ -11,3 +11,28 @@ _start: xrstor [ecx] xsave [ecx] xsaveopt [ecx] + + .att_syntax prefix +avx: + .arch generic32 + .arch .avx + xsave (%eax) + xrstor (%eax) + +lwp: + .arch generic32 + .arch .lwp + xsave (%eax) + xrstor (%eax) + +mpx: + .arch generic32 + .arch .mpx + xsave (%eax) + xrstor (%eax) + +pku: + .arch generic32 + .arch .ospke + xsave (%eax) + xrstor (%eax) |